LU-397 Set 'lsr_flags' as 'LU_SEQ_RANGE_MDT' for old 2.0 client

Lustre 2.x introduces server identifier into lu_seq_range to distinguish
MDT and OST fids. But for old 2.0 client, it does not specify such
identifier/flags. So use 'OBD_CONNECT_SEQ_RANGE' to distinguish whether
it is old 2.0 client or not. For old 2.0 client, set the 'lsr_flags' as
'LU_SEQ_RANGE_MDT' by default.

Change-Id: I652caa637959268e1da499370a0efd356ff98bbe
Signed-off-by: nasf <yong.fan@whamcloud.com>
Reviewed-on: http://review.whamcloud.com/902
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Hudson
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/cmm/mdc_device.c b/lustre/cmm/mdc_device.c
index 416233d..27c5d63 100644 (file)
--- a/lustre/cmm/mdc_device.c
+++ b/lustre/cmm/mdc_device.c
@@ -159,7 +159,8 @@ static int mdc_obd_add(const struct lu_env *env,
                                          OBD_CONNECT_MDS_MDS |
                                          OBD_CONNECT_FID |
                                          OBD_CONNECT_AT |
-                                         OBD_CONNECT_FULL20;
+                                         OBD_CONNECT_FULL20 |
+                                         OBD_CONNECT_64BITHASH;
                 rc = obd_connect(env, &desc->cl_exp, mdc, &mdc->obd_uuid, ocd, NULL);
                 OBD_FREE_PTR(ocd);
                 if (rc) {

diff --git a/lustre/fld/fld_handler.c b/lustre/fld/fld_handler.c
index 9a30103..ae9520a 100644 (file)
--- a/lustre/fld/fld_handler.c
+++ b/lustre/fld/fld_handler.c
@@ -342,15 +342,14 @@ static int fld_server_handle(struct lu_server_fld *fld,
 static int fld_req_handle(struct ptlrpc_request *req,
                           struct fld_thread_info *info)
 {
-        struct lu_site *site;
+        struct obd_export *exp = req->rq_export;
+        struct lu_site *site = exp->exp_obd->obd_lu_dev->ld_site;
         struct lu_seq_range *in;
         struct lu_seq_range *out;
         int rc;
         __u32 *opc;
         ENTRY;
 
-        site = req->rq_export->exp_obd->obd_lu_dev->ld_site;
-
         rc = req_capsule_server_pack(info->fti_pill);
         if (rc)
                 RETURN(err_serious(rc));
@@ -365,6 +364,13 @@ static int fld_req_handle(struct ptlrpc_request *req,
                         RETURN(err_serious(-EPROTO));
                 *out = *in;
 
+                /* For old 2.0 client, the 'lsr_flags' is uninitialized.
+                 * Set it as 'LU_SEQ_RANGE_MDT' by default.
+                 * Old 2.0 liblustre client cannot talk with new 2.1 server. */
+                if (!(exp->exp_connect_flags & OBD_CONNECT_64BITHASH) &&
+                    !exp->exp_libclient)
+                        out->lsr_flags = LU_SEQ_RANGE_MDT;
+
                 rc = fld_server_handle(lu_site2md(site)->ms_server_fld,
                                        req->rq_svc_thread->t_env,
                                        *opc, out, info);

diff --git a/lustre/include/lustre/lustre_idl.h b/lustre/include/lustre/lustre_idl.h
index 3bdebf1..54e915c 100644 (file)
--- a/lustre/include/lustre/lustre_idl.h
+++ b/lustre/include/lustre/lustre_idl.h
@@ -1105,7 +1105,8 @@ extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
                                 OBD_CONNECT_OSS_CAPA  | OBD_CONNECT_RMT_CLIENT | \
                                 OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \
                                 OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
-                                OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20)
+                                OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \
+                                OBD_CONNECT_64BITHASH)
 #define ECHO_CONNECT_SUPPORTED (0)
 #define MGS_CONNECT_SUPPORTED  (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
                                 OBD_CONNECT_FULL20)

diff --git a/lustre/llite/llite_lib.c b/lustre/llite/llite_lib.c
index 954f4ff..d9635a1 100644 (file)
--- a/lustre/llite/llite_lib.c
+++ b/lustre/llite/llite_lib.c
@@ -355,7 +355,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                                   OBD_CONNECT_SRVLOCK   | OBD_CONNECT_TRUNCLOCK|
                                   OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
                                   OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
-                                  OBD_CONNECT_FULL20;
+                                  OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH;
 
         if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
                 data->ocd_connect_flags |= OBD_CONNECT_SOM;

diff --git a/lustre/mds/mds_lov.c b/lustre/mds/mds_lov.c
index 40d477d..8225a53 100644 (file)
--- a/lustre/mds/mds_lov.c
+++ b/lustre/mds/mds_lov.c
@@ -718,7 +718,8 @@ int mds_lov_connect(struct obd_device *obd, char * lov_name)
                                   OBD_CONNECT_BRW_SIZE  | OBD_CONNECT_CKSUM   |
                                   OBD_CONNECT_CHANGE_QS | OBD_CONNECT_AT      |
                                   OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN   |
-                                  OBD_CONNECT_SOM | OBD_CONNECT_FULL20;
+                                  OBD_CONNECT_SOM | OBD_CONNECT_FULL20 |
+                                  OBD_CONNECT_64BITHASH;
 #ifdef HAVE_LRU_RESIZE_SUPPORT
         data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
 #endif

diff --git a/lustre/obdecho/echo_client.c b/lustre/obdecho/echo_client.c
index 41a8e90..512ad9b 100644 (file)
--- a/lustre/obdecho/echo_client.c
+++ b/lustre/obdecho/echo_client.c
@@ -1982,7 +1982,8 @@ static int echo_client_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
         }
 
         ocd->ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_REQPORTAL |
-                                 OBD_CONNECT_GRANT | OBD_CONNECT_FULL20;
+                                 OBD_CONNECT_GRANT | OBD_CONNECT_FULL20 |
+                                 OBD_CONNECT_64BITHASH;
         ocd->ocd_version = LUSTRE_VERSION_CODE;
         ocd->ocd_group = FID_SEQ_ECHO;